______,Add ketchup and 3 tablespoons of juice from olives.,Let meat mixture cook on low for about 30 minutes.,Cook spaghetti according to package directions.,In 2-quart casserole dish put a layer of spaghetti and a layer of the meat mixture.,Pour soup over meat. Then, another layer of the spaghetti and meat mixture.,Place cheese on top.,Cut olives in slices and add to top of cheese. Bake in preheated 400° oven for 1 hour.